Hydraulic concentrating and amalgamating apparatus.



WJTNESSES a psm W. P. M. MoOARTY. HYDRAULIC GONOENTRATING AND AMALGAMATING APPARATUS..

APPLICATION FILED PBBJO, 1912. RENEWED NOVJ, 1912.

' MHz/ 1%;

"Patented Dec. 17, 1912.

INVENTOR J7 Allarney 'W. PPM. Mc'GARTY. HYDRAULIC GONGENTRATING AND AMALGAMATING APPARATUS.

APPLIGATIOH FILED IEB.10, 1912., RENEWED NOV. 4, 1912.

1,047,673, Patented Dec. 17', 1912.

2 SHEBTSSHEET 2 I I I I V V I Q Q a WITNESSES I F/Z fl a/ f INVENTOR UNIT D STATES PA ENT OFFICE;

WI LIAMrI'rzo aaLns MASON McCARTY, on NEW YORK; N. Y.

Specification of LettersPaten1;.

nynnaumcconcnnrnarrne Jinn AMAIIGAMATINTGQ APPARATUS.

. Patented Dec. 17,1912.

: Application flled February 10,*i9 i2,;Seiial n6. 676,791. Renewed November 4, 1912. Serial No. 729,546.

To all whom it may'ao ncem:

. Be it known that Lad/VILLIALKFQ Mc- OARTY, a citizen of the United States, res'iding at New York, in the county of New York and State'of New York, haveinvented certain new and useful Improvements in Hydraulic Concentrating and Amalgamating Apparatus, ofwhich the following is-a specification.

"The present invention relates to a. hy-' draulic concentrating and amalgamating apparatus, for use in separating precious metals. from their ores for sands.

.An important ob ect-of this invention 1sto provide-"an apparatus of the above mentioned' character, which .will separate, clasasify, and concentrate materials of difierent specific gravities, such as finely pulverized ore or sand carrying fine particles of gold oiother precious metals intimately mixed therewith. r

A fu'rther object of my invention is to provide apparatus of the above mentioned character, which is. characterized by extreme. simplicity of structure, automatic and thorough operation, and c'heapness costof manufacture.

Other objects andadvantages of the in-' 'vention will be apparent during'the course of the following description.

- In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,Figure 1 is a plan view of the apparatus as a whole, Fig. 2 is a detail horizontal sectional view through the nozzle,

' Fig.3 "isfa detail vertical sectional view through'the same, Fig. 4 is a detail View showing one of the discharge portions and associated elements, Fig. "5'is an enlarged sectional view through the strainer tank,

showing one of the strainers, and, Fig.6

is a side view of the entire apparatus, parts 1 being shown in section.

In the drawings wherein for the sake of illustration, I haveshown a preferred embodiment of my invention, the numerals 1,

2 and 3, 4* designate scts of upstanding or vertical concentrating tanks. These tanks threaded for engagement with an externally,

have their upper ends internally screwscrew-threaded plug or cap 5, provided with extensions 6 to be engaged by a suitable tool such as a wrench, whereb the plugs or capsmay be turned. Each 0 the concentrating tanks is preferably formedin a plurality of sections 7, 8' and 9, disposedin end to-end relation and having screw-threaded engagement, as shown.

The lower section' 9 of each of these concentrating tanks is e2 (te1;-,., 'nally screw-threaded at its lower end for V engagement with an internally screw-.

threaded ring 10, to which is connected a transparent concentrate basin 11. This basin may, preferably be formed of glass and is substantially inverted frusto-conically shaped. Attached to. the lower end of the concentrate basin llis a plate 12, hav

ing a'central opening formed therethrough for receiving a draw-'ofi' pipe 13, which leads thereof. This" draw-off pipe is provided with a cut-ofi valve 14 of any well known or preferred type, ,Each of the concentratmg tanks is provided near its lower end ably in the. section 9*,with a sand or ore disinto the concentrate basin at the lower end T 'above'the concentrate basin l1 and prefercharge opening/15, which is normally closed from the two sets of concentrating tanks above referred to.. The tanks in this third set are much smaller in diameter than the -concentrating.tanks in the first two sets, as shown; Each'of the concentrating tanks 17 18, 19 and 20 is'preferabl'y formed in secrelation and having screw-threaded engagement, as shown. Thelower section 23 has'its lower end internally screw-threaded for engagement with an internally screw-threaded ring 24 having connection with a depending transparent concentrate basin 25. This concentrate basin 25 is preferably formed of glass, is substantially inverted frusto-coni- .callyshaped, and of much smaller diameter than the concentrate basin 11. At its lower end the transparent concentrate basin 25 is connected with a plate 26, "provided with a *tions 21, 22- and 23 disposed in end to end central opening'for receiving a draw-off section 21 of each ofthese smaller concen-' trating tanks is internally screw-threaded at 'i-ts'upper end for engagement with anex ternally screw-threaded cap or plug 29, provided Witlran extension 30 adapted to'been- .gaged by, a suitable tool or wrench whereby concentrating tanks 1 and 3 have COIIIIQC,

the cap may be turned. Each of the smaller concentrating tanks is provided near its lower end above the concentrate basin 25 and in the section 23 with a sand or ore discharge or waste opening .31, which is normally closed by a swinging door 32 or other equivalent element. The discharge openings of the tanks 3 and 4 and the discharge openings 31 of the tanks 17 to 20 inclusive, discharge into an inclined trough 33, extending near one side of these tanks. The discharge openings 15 of the concentrate tanks 1 and 2 discharge into an inclined trough 34, disposed near the opposite sides of the concentrating tanks, as shown.

tion near their upper-ends with converging horizontal pipes 41, which extend within the upper end of the smaller concentrating tank 20 and are therein both connected with a depending pipe 42, which extends axially within the tank 20. The concentrating tanks 19 and 20 are connected substantially mid way their ends by a horizontal pipe 43, havingconnection with a depending pipe 44 which extends axially throughthe tank 19. The upper ends of the tanks 18 and 19 are connected by a horizontal pipe 45, which is connected with a depending pipe 46, extending axially within the tank 18. A horizontal pipe 47 connects the concentrating tanks 17 and 18 substantially midway the ends thereof and this pipe is connected with a depending pipe 48, which extends axially within the tanks 17, as shown.

Each of the depending pipes 37, 40, 42,

44, 46, and 48 is provided with a substantially bulbou's-shaped nozzle 49. These nozzles are of the same shape and construction except that the nozzles disposed in the concentrate basins are smaller than the nozzles disposed in the basins 11, as shown. Each of these nozzles 49, as more clearly shown in Figs. 2 and 3, is provided with a lower axial opening 50, an intermediate horizontal. ring of openings or apertures 51, and an upwardly discharging set of openings 52. The ring or set of openings 51 are horizontally inclined with respect to the radius of the nozzle to impart a rotary movement to material passing therethrough. The upper openings 52 discharge thesand or crushed ore upwardly, so that the slime is held in suspension. in the water. The conthe nozzle 49.

struction of the nozzle is an important fea ture of the invention as by its employment the sand or crushed ore in the presence of water, is thoroughly agitated, scrubbed, and washed, in a more advantageous manner than has heretofore been accomplished.

Connected with the upper end of the con-' centrating tank 17 is a discharge pipe 53, passing through an opening formed in the head or cap 54, which is externally screwthreaded for engagement with the upper end of a vertical shell or casing 55. Arran'ged in this shell or casing in spaced superposed relation are strainers 56. Each of these strainers comprises an annularframe 57, to' which is secured a section of wire screen ornetting 58, serving to support a strainer cloth 59, upon which mercury is preferably sprinkled. The frames 57 of these strainers are rigidly connected with the shell by means of bolts 60 or the like, as shown. The shell 55 has its lower end inverted frustoconically shaped, as shown at 61, to which end is connected a'draw-ofi' pipe 62, preferably provided with a cut-off valve 63 of any well known or preferred type.

The numeral 64 designates a settling tank formed in two compartments 65 and.66, as shown. The draw-oil pipe 62 discharges into the compartment 65 and a pipe 67 serves to establish communication between the two compartments. Connected with the compartment 66 of the tank 64 is a pipe 68, pref erably having connectionwith a pump (not shown), which supplies water to the pipes 35 and 36 or to the t-ankwith which these pipes are connected.

Each of the tanks 1.7, 18, 19 and 20, which may be of any suitable number and form a third set of tanks, is provided near its upperend with a pressure relief valve or stop cook 69, which is connected in a pipe 69, which discharges its material onto a suitable strainer (not shown). It is thus seen that when the valves or stop cocks 69 are in op eration they allow of the discharge or flow of the water from the tanks through the pipes 69 whereby the pressure in these tanks is reduced. 7

The operation of the device is as follows: The auriferous sand or crushed ore may preferably be introduced into thetanks 2 and 4 by the removal of the plugs or caps 5. These plugs or caps are then of course returned to their closed position. The water is now supplied through the pipes 35 and 36, preferably at about the pressure ofsixty pounds to the square inch. The water then discharges through the pipe 37 and through This water now passes through the openings of the nozzlein the concentrate basin 11, such water being dis.-

rharged in i. all directions; 'upwardly and downwardly through openings 50. and 52 and laterally through theopening' 57. At-

- that the material in the concentrating tank tention is called to the fact that the water discharging through the nozzle 49 -is given the same movement as 13 foundln nature when the Water fiows' overrocks and, ob-

structi ns in a stream, forming riflies, and,

the water flowing into a pool at the rifiies.

My apparatus is thusovery thorough in-operaticn and it is ilnPOSSlbleifOI the material to pass through the same without beingiseparated, concentrated andv seized, by gra'vity'. This water passing through the open1ngs, 57

is given a rotary movement. It is thusseen 2'is thoroughly agitated and washed and as thewater level increases inthis tank it is carried by the water through thepipe 38 into the pipe which extends within the tank 1. The ore or sand in the water is now discharged into the nozzle 49 carried by the pipe 40 and isiagitated, ground, and

thoroughly scoured in the nozzle and subsequently discharged "throughthe openings. of

the same into the concentrate basin ll,

wherein it undergoes further washing. 1

have thus described the operation of the apparatus in connection with tanks land 2,

and it might be'stated that the operation of tanks 3 and 4 and 17 to 20 is the same eX-' cept that the agitation is much more severe in-the tanks 1, 2 and 3, ft than in tanks 17.

I to" 20. The crushed ore orsand together with the water are violently agitated by the high pressure of-the Water inthe'first .two.

sets of concentrating tanks which throws;

' down 'tlle larger particles of free. gold, or any material heavier than the matrix holding it. When the oreand the water have been thoroughly treated in the first and sec ond sets of concentrating tanks'thcy pass into the third set of concentrating tanks (tanks 17 to 20) of, which there may be any suitable num er. The agitation in this third set of conccntrating tanks not as violent, and gradually decreasing in each succeeding tank to the left. This is. due tothe-fact that some of the water escapes from the upper ends of these tanks through the pressure relief valves, or stop-cocks 69,'

whereby the pressure in this third set of tanks is reduced. The finely divided particles or gold or the like that have passed together with the sand or ore and water through the first two sets of concentrating tanks, wherein, above stated, the pressure is "cry high and the agitation violent, now have an opportunity to be separated and settlcin the concentrating tanks of the third set: Thewater that is discharged through the pressure, relief valve or stop-cock is conducted through' the pipes 69 onto a, suitablefilter cloth (not shown). In this way any fine particles of gold which migh otherwise be -lost,'are recovered. It is thl s s x that the water carrying the materia' to e treatedmayhe fedlnto the first two sets of' concentrating tanks at a pressure of about sixty pounds to the square inch andwill be" discharged, into each successive tank of the tank ofthe third setmay be lower than thatof the preceding tank which is accomplished.

third set. The pressurein each successive by providing the, pressure relief. .valveslcr stop-cocks; The agitationis most severe in gthe -tanks to' 4 inclusive, and gradually V decreases in each successivetank 20, 19, '18 .and l7 ,.to the left, such decrease in agitation being caused by a corresponding decrease in pressure. The. pressure in the tank 20 willbe less than, that in the tank l on account of the operation of the valve or stopcock 69,,which permits of the discharge of water through the same, whilethefl pressure in, the tank 19 will he still'less'than that in the ,tank 20 because suchpressure is, effected by the two valves or stop-cocks 69,

.carried bysthe tanks 19' and QO and so on It is thus seen thatthefinerparticles; of gold which pass into each ofthe successive tanks of the third set are-separated and allowed tosettle. Y The heavier particles of gold or ;ticles finally discharges through the: pipe 53 into the upper end of the shell 55' and passingthrough the strainers 56, the very fine particles of gold or, the gold bearing par-. ticles are caught by such strainers, upon which is preferably sprinkled mercury. The water then discharges throughthe pipe 62 into the tank 64. Should there remain any fine particles of-gold or gold bearing particles in this water, theywill settle in the compartment 65, while the very light'par ticles may be carried over into the compart-- ment 6 and there allowed to settle and be collected. I It is to beunderstood that the form of my invention herewith shown and described is to be taken as a .prefer red' example of the a I same and thatcertain changes in the shape,.

size, and arrangement of parts may be re.- sorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, 1.

claim 1. In apparatus of the character described, a "concentrating .and classifying tank, a nozzle disposedtherein and providedupon its upper-and lower portions with vertical discharge} ,opening s arid be-x tween such discharge openings with horizontal dischar e openings disposed at'angles to the radii o the nozzle, in corresponding directions around the-nozzle, and means for .supplying a classifyingv current to said nozzle. 1 t

2. In apparatus of the character described a seri-es of upstanding concentrat ing an classifying tanks wherein alternate tanks of the serieshave communication with the adjacent tanks 'on the outlet side of the apparatus througlrco'nduits leading from saidalternate tanks near the lower portion thereof V into said adjacent tanks near thelower portions of the same, said adjacent tanks having communication with said alternate tanks on the outlet side of the apparatus "through conduits leading from. said adjacent tanks, near the upper portions thereof, into said alternatetanks, near the upper portions thereof and yterminati'ng 'near the lower portions of the 'same, means to supply a classifying streanninto one of the tanks of the series,

and the tanks being provided near their upp'er' ends with restricted discharge means.

-" with upwardly and "downwardly fling. openi 3. In apparatus'of the character described, 'a concentrating and classifying tank, a, nozzle disposed therein and rovide ischargand horizontally discharging open ngs disposed at angles'to'theradii' of the nozzle, and meansto supply a classify ing stream toethe nozzle.

4. In apparatus of the character described, a concentrating, and classifying tank, an approximately spherical nozzle disposed therein and provided at its upper portion with upstanding discharge openingsand below them with substantially horizontal discharge openings disposed at angles to" the radii of the nozzle, in"

and means for supplying "a classifying] stream to the nozzle.

GfIn apparatus of the character described, a series of upstanding and classifying tanks wherein alternate tanks of the series have conununication with the adjacent tanks through conduitsleading from said alternate tanks, near the lower portions thereof, into said adjacent tanks near the lower portions of thesame, said adjacent tanks having communication with said alternate tanks through conduitsleading from said adj accnt tanks, near the upper portions thereof, into said alternate tanks, near the upper portions thereof and terminating near the lower portions of the same, means.

to supply a classifying stream into one of the tanks of the series, and valves connected with thetanks near their upper ends. 7

In testimony WlLLIAM lgI'lZCHAR-LES MASON MGGARTY.

Witnesses:

SAMUEL B. BRILLHART, SoLoMoN S. LIEBESMAN;

whereof I afiix my signature in presence of two witnesses. 

